Computer efficiency

Shortcuts

If you have enabled Emacs-style text editing shortcuts in GNOME, they will also work in Firefox. When an Emacs text editing shortcut conflicts with the default shortcuts (as occurs with Ctrl+K), the Emacs shortcut will take precedence if focus is inside a text box (which would include the location bar and search bar). In such cases you should use the alternate keyboard shortcut if one is listed below.
Office keyboard shortcuts - Help and How-to - Microsoft Office O. The Master List of New Windows 7 Shortcuts - Windows - Lifehacke.

Systems

The team here has been furiously writing Windows 7 articles, and updating old articles for Windows 7—and we now have more than 175 articles covering Windows 7. First: Get Your Copy Yet? If you haven’t already gotten your copy of Windows 7, you can buy it now on Amazon… although if you are impatient you could also head down to the local tech store and grab it. We recommend Home Premium for almost anybody, though you can grab Ultimate or Professional if you wanted to spend more.